* [PATCH iproute2] man ip-link: Add notice about local netns devices
@ 2015-02-25 13:46 Vadim Kochan
2015-02-28 3:02 ` Stephen Hemminger
0 siblings, 1 reply; 2+ messages in thread
From: Vadim Kochan @ 2015-02-25 13:46 UTC (permalink / raw)
To: stephen; +Cc: netdev, Vadim Kochan
From: Vadim Kochan <vadim4j@gmail.com>
Added some clarification why 'ip link set netns' can not
change network namespace for some kind of devices.
Signed-off-by: Vadim Kochan <vadim4j@gmail.com>
---
man/man8/ip-link.8.in | 29 ++++++++++++++++++++++-------
1 file changed, 22 insertions(+), 7 deletions(-)
diff --git a/man/man8/ip-link.8.in b/man/man8/ip-link.8.in
index 057125b..5102f75 100644
--- a/man/man8/ip-link.8.in
+++ b/man/man8/ip-link.8.in
@@ -660,14 +660,29 @@ the interface is
.IR "POINTOPOINT" .
.TP
-.BI netns " PID"
-move the device to the network namespace associated with the process
-.IR "PID".
-
-.TP
-.BI netns " NETNSNAME"
+.BI netns " NETNSNAME " \fR| " PID"
move the device to the network namespace associated with name
-.IR "NETNSNAME".
+.IR "NETNSNAME " or
+.RI process " PID".
+
+Some devices are not allowed to change network namespace: loopback, bridge,
+ppp, wireless. These are network namespace local devices. In such case
+.B ip
+tool will return "Invalid argument" error. It is possible to find out if device is local
+to a single network namespace by checking
+.B netns-local
+flag in the output of the
+.BR ethtool ":"
+
+.in +8
+.B ethtool -k
+.I DEVICE
+.in -8
+
+To change network namespace for wireless devices the
+.B iw
+tool can be used. But it allows to change network namespace only for physical devices and by process
+.IR PID .
.TP
.BI alias " NAME"
--
2.2.2
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH iproute2] man ip-link: Add notice about local netns devices
2015-02-25 13:46 [PATCH iproute2] man ip-link: Add notice about local netns devices Vadim Kochan
@ 2015-02-28 3:02 ` Stephen Hemminger
0 siblings, 0 replies; 2+ messages in thread
From: Stephen Hemminger @ 2015-02-28 3:02 UTC (permalink / raw)
To: Vadim Kochan; +Cc: netdev
On Wed, 25 Feb 2015 15:46:22 +0200
Vadim Kochan <vadim4j@gmail.com> wrote:
> From: Vadim Kochan <vadim4j@gmail.com>
>
> Added some clarification why 'ip link set netns' can not
> change network namespace for some kind of devices.
>
> Signed-off-by: Vadim Kochan <vadim4j@gmail.com>
Applied
^ permalink raw reply [flat|nested] 2+ messages in thread
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2015-02-28 3:02 ` Stephen Hemminger
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